Ambient concetrations are often available as non-methane hydrocarbons
(NMHC). Since there are actually hundreds of specific compaounds in this
class, only a few major structural categories are chosen to simulate the
range of all NMHC compounds. The speciation factors divide the gross
measure of NMHC compounds into these various categories (see the
description of the model chemistry).

Emission Data:

Source emission rate of CO from area and line sources (kg/hour)

Source emission rate of CO from point sources (kg/hour)

Source emission rate of NOx from area and line sources (kg/hour)

Source emission rate of NOx from point sources (kg/hour)

Source emission rate of total hydrocarbons (THC) from area and line
sources (kg/hour)

Source emission rate of total hydrocarbons (THC) from point sources (kg/hour)

Source emission rate of hydrocarbon classes from point sources (moles/hour)

Source emission rate of hydrocarbon classes from area and line
sources (moles/hour)